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Explorer 18
Satellite statunitense appartenente al Programma Explorer. Explorer 18 was launched on November 27, 1963 aboard a Thor Delta C from Cape Canaveral & Kennedy. Latest status in GCAT: left Earth orbit for deep space (Nov 27, 1963).
COSPAR 1963-046ANORAD 693United States
Identity
- Name in GCAT
- IMP 1
- Common name
- Explorer 18
- Payload designation
- IMP A
- Other names
- Explorer 18
- International designator
- 1963-046A
- NORAD catalog number
- 693
- GCAT identifier
- S00693
- UN registration
- A/AC.105/INF.057
Mission
- Mission type
- Space science
- Use
- Civil government
- Program
- IMP
- Owner
- GSFC
- Country
- United States
- Builder
- NASA Goddard Space Flight Center
- Platform (bus)
- IMP
Launch
- Date
- November 27, 1963 · 02:30 UTC
- Launch record
- 1963-046Success
- Rocket
- Thor Delta C
- Spaceport
- Cape Canaveral & Kennedy · pad LC17B
Orbit and fate
- Orbit class (GCAT)
- DSO
- Perigee
- 2,072 km
- Apogee
- 194,080 km
- Inclination
- 35.29°
- Status
- Left Earth orbit for deep space
- Status date
- November 27, 1963
- Last known active
- Mar 25, 1965
- End of operations
- Mar 25, 1965
Size
- Mass
- 63 kg
- Dry mass
- 63 kg
- Length
- 0.3 m
- Diameter
- 0.70 m
- Span
- 2.5 m
Deep space
- Deep-space catalog entry
- D00040
- Final central body
- Earth
- Phase start
- November 27, 1963
- Phase outcome
- Reentered (orbital decay) · November 30, 1965
- Destination
- LOST
Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q1174215 (CC0).